Clear Lake Threshold Days by Year

4 fixed thresholds counted per year at Clear Lake (ASN00079008): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clear Lake Thresholds

Clear Lake: days with 10 mm (0.39 in) or more of precipitation in 123 years, most in 1906 with 23.
Clear Lake: days with 25 mm (0.98 in) or more of precipitation in 97 years, most in 1946 with 8.
Clear Lake: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 1946 with 3.
Clear Lake: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1957 with 1.
4 fixed thresholds have at least one qualifying day at Clear Lake.

Days with 10 mm (0.39 in) or more of precipitation

123 years with a qualifying day

Days per year at Clear Lake with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1906.

Days with 10 mm (0.39 in) or more of precipitation per year at Clear Lake
Year	Days	Decade average
1904	10	14.7
1905	14	14.7
1906	23	14.7
1907	13	14.7
1908	13	14.7
1909	15	14.7
1910	16	12.7
1911	14	12.7
1912	12	12.7
1913	7	12.7
1914	8	12.7
1915	14	12.7
1916	16	12.7
1917	14	12.7
1918	13	12.7
1919	13	12.7
1920	15	11.9
1921	16	11.9
1922	17	11.9
1923	16	11.9
1924	15	11.9
1925	5	11.9
1926	11	11.9
1927	5	11.9
1928	13	11.9
1929	6	11.9
1930	13	13.1
1931	12	13.1
1932	13	13.1
1933	20	13.1
1934	8	13.1
1935	9	13.1
1936	17	13.1
1937	17	13.1
1938	9	13.1
1939	13	13.1
1940	9	13.3
1941	14	13.3
1942	19	13.3
1943	9	13.3
1944	9	13.3
1945	7	13.3
1946	19	13.3
1947	23	13.3
1948	7	13.3
1949	17	13.3
1950	13	15.1
1951	18	15.1
1952	15	15.1
1953	23	15.1
1954	13	15.1
1955	18	15.1
1956	23	15.1
1957	7	15.1
1958	8	15.1
1959	13	15.1
1960	20	13.2
1961	14	13.2
1962	9	13.2
1963	9	13.2
1964	21	13.2
1965	11	13.2
1966	11	13.2
1967	7	13.2
1968	15	13.2
1969	15	13.2
1970	9	13.8
1971	15	13.8
1972	13	13.8
1973	21	13.8
1974	21	13.8
1975	14	13.8
1976	8	13.8
1977	9	13.8
1978	14	13.8
1979	14	13.8
1980	15	13.5
1981	20	13.5
1982	1	13.5
1983	20	13.5
1984	13	13.5
1985	11	13.5
1986	16	13.5
1987	15	13.5
1988	17	13.5
1989	7	13.5
1990	13	14.9
1991	15	14.9
1992	23	14.9
1993	16	14.9
1994	11	14.9
1995	17	14.9
1996	15	14.9
1997	11	14.9
1998	14	14.9
1999	14	14.9
2000	8	10.3
2001	12	10.3
2002	4	10.3
2003	13	10.3
2004	12	10.3
2005	16	10.3
2006	5	10.3
2007	16	10.3
2008	6	10.3
2009	11	10.3
2010	17	11.8
2011	14	11.8
2012	9	11.8
2013	15	11.8
2014	7	11.8
2015	8	11.8
2016	21	11.8
2017	12	11.8
2018	9	11.8
2019	6	11.8
2020	7	10.7
2021	8	10.7
2022	17	10.7
2023	8	10.7
2024	12	10.7
2025	10	10.7
2026	13	10.7

For each year, a bar from the first to the last day at Clear Lake meeting 10 mm (0.39 in).

First to last qualifying date each year at Clear Lake
Year	First date	Last date
1904	1904-01-03	1904-10-19
1905	1905-01-03	1905-11-12
1906	1906-02-28	1906-11-29
1907	1907-02-06	1907-12-27
1908	1908-01-09	1908-12-02
1909	1909-03-07	1909-11-10
1910	1910-03-07	1910-12-23
1911	1911-02-07	1911-12-13
1912	1912-06-24	1912-11-20
1913	1913-02-14	1913-12-23
1914	1914-02-28	1914-12-15
1915	1915-05-14	1915-09-20
1916	1916-01-28	1916-12-02
1917	1917-02-15	1917-10-19
1918	1918-01-13	1918-10-07
1919	1919-02-03	1919-12-27
1920	1920-03-07	1920-12-15
1921	1921-01-02	1921-11-26
1922	1922-01-07	1922-12-24
1923	1923-05-21	1923-12-14
1924	1924-02-15	1924-11-23
1925	1925-05-12	1925-09-13
1926	1926-04-04	1926-09-28
1927	1927-03-19	1927-12-02
1928	1928-01-20	1928-11-04
1929	1929-02-22	1929-12-28
1930	1930-02-21	1930-12-16
1931	1931-03-13	1931-11-16
1932	1932-02-05	1932-12-15
1933	1933-01-24	1933-12-05
1934	1934-04-03	1934-11-08
1935	1935-01-05	1935-12-02
1936	1936-01-10	1936-12-17
1937	1937-01-19	1937-12-11
1938	1938-01-12	1938-07-23
1939	1939-01-16	1939-12-05
1940	1940-04-25	1940-12-20
1941	1941-01-24	1941-11-21
1942	1942-01-20	1942-11-22
1943	1943-01-22	1943-12-17
1944	1944-01-23	1944-12-21
1945	1945-05-13	1945-12-27
1946	1946-01-17	1946-12-28
1947	1947-02-04	1947-12-23
1948	1948-04-11	1948-12-26
1949	1949-01-29	1949-11-22
1950	1950-03-17	1950-12-20
1951	1951-01-04	1951-12-10
1952	1952-01-25	1952-12-11
1953	1953-01-14	1953-12-07
1954	1954-01-28	1954-12-12
1955	1955-02-12	1955-10-21
1956	1956-03-05	1956-11-16
1957	1957-02-07	1957-12-25
1958	1958-05-15	1958-11-22
1959	1959-01-25	1959-12-25
1960	1960-01-04	1960-12-03
1961	1961-03-02	1961-12-17
1962	1962-01-08	1962-10-04
1963	1963-01-14	1963-08-25
1964	1964-02-07	1964-11-22
1965	1965-05-16	1965-12-13
1966	1966-02-14	1966-12-12
1967	1967-02-25	1967-12-30
1968	1968-02-20	1968-11-06
1969	1969-01-25	1969-12-02
1970	1970-01-12	1970-12-05
1971	1971-04-17	1971-12-10
1972	1972-01-07	1972-11-10
1973	1973-01-31	1973-12-30
1974	1974-01-14	1974-10-16
1975	1975-04-05	1975-10-30
1976	1976-02-05	1976-11-30
1977	1977-01-14	1977-12-26
1978	1978-04-10	1978-11-19
1979	1979-01-17	1979-11-15
1980	1980-04-19	1980-11-06
1981	1981-05-24	1981-11-20
1982	1982-03-23	1982-03-23
1983	1983-03-02	1983-11-29
1984	1984-01-02	1984-11-11
1985	1985-01-03	1985-12-07
1986	1986-04-17	1986-12-17
1987	1987-02-20	1987-12-05
1988	1988-01-01	1988-09-11
1989	1989-02-14	1989-09-11
1990	1990-02-28	1990-12-10
1991	1991-01-05	1991-11-04
1992	1992-01-01	1992-12-22
1993	1993-01-25	1993-12-22
1994	1994-01-06	1994-10-07
1995	1995-01-06	1995-12-04
1996	1996-03-16	1996-12-07
1997	1997-01-22	1997-11-11
1998	1998-04-12	1998-12-20
1999	1999-03-22	1999-12-27
2000	2000-04-30	2000-12-23
2001	2001-02-13	2001-11-24
2002	2002-07-04	2002-12-31
2003	2003-02-21	2003-12-22
2004	2004-03-29	2004-12-11
2005	2005-01-04	2005-11-08
2006	2006-01-29	2006-09-06
2007	2007-01-06	2007-12-22
2008	2008-01-19	2008-12-13
2009	2009-04-24	2009-12-18
2010	2010-03-29	2010-12-08
2011	2011-01-12	2011-12-19
2012	2012-01-08	2012-12-15
2013	2013-02-15	2013-10-23
2014	2014-01-02	2014-11-24
2015	2015-01-13	2015-12-26
2016	2016-01-22	2016-12-28
2017	2017-01-14	2017-12-01
2018	2018-05-04	2018-12-16
2019	2019-05-10	2019-11-02
2020	2020-01-23	2020-11-11
2021	2021-06-17	2021-11-25
2022	2022-01-27	2022-11-19
2023	2023-04-07	2023-12-25
2024	2024-01-07	2024-12-07
2025	2025-06-07	2025-11-29
2026	2026-02-28	2026-09-05

Every Fixed Threshold

Fixed thresholds at Clear Lake
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	123	23	1906	13
25 mm (0.98 in): Days with 25 mm or more rain	97	8	1946	2
50 mm (1.97 in): Days with 50 mm or more rain	23	3	1946	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1957	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

Download the Data

Data for Clear Lake threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Clear Lake Threshold Days by Year

Key Facts for Clear Lake Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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